JT3150T - 150Amp Trip Unit

JT3150T - 150Amp Trip Unit

The JT3150T is a 150A, three-pole thermal-magnetic trip unit for compatible Eaton Series C molded case circuit breaker assemblies. When you're working with existing or legacy equipment, the useful details are right on the specification sheet: T185 trip type, JT circuit breaker type, and J-K frame size. Those identifiers should be checked alongside the 150A rating, rather than relying on amperage alone. The JT3150T is built to last and is intended for situations where the existing breaker assembly specifically calls for this Series C trip-unit configuration.

Key Features and Benefits

• 150A amperage rating for compatible breaker assemblies requiring this exact rating.
• Three-pole configuration provides an important compatibility checkpoint.
• Thermal-magnetic trip unit as specified by the manufacturer.
• T185 trip type helps identify the correct replacement configuration.
• Intended for JT circuit breaker type.
• Specified for J-K frame size.
• Part of the Eaton Series C product line.
  

Technical Specifications

• Catalog Number: JT3150T
  
• Manufacturer: Eaton
  
• Product Name: Molded Case Circuit Breaker Accessory Trip Unit
  
• Series: Series C
  
• Type: Trip Unit
  
• Amperage Rating: 150A
  
• Number of Poles: 3
  
• Trip Type: T185
  
• Trip Technology: Thermal-Magnetic
  
• Circuit Breaker Type: JT
  
• Frame Size: J-K
  
• Width: 4.3 in.
  
• Height: 5.4 in.
  
• Length / Depth: 7.1 in.
  
• Product Weight: 1.3 lb
  
• UPC: 786679404133
  

Material Compliance and Certifications

The Eaton JT3150T is UL Listed. The supplied manufacturer information directs customers to contact the manufacturer for additional compliance information. No other specific material or environmental certifications were provided, so additional certifications should not be assumed.

Where It Works Best

The JT3150T is suited to compatible Eaton Series C molded case circuit breaker assemblies that call for a 150A, three-pole T185 thermal-magnetic trip unit, JT breaker type, and J-K frame size. It is particularly relevant for maintaining existing and legacy electrical equipment where preserving the original form, fit, ratings, and trip-unit configuration is important.

Before installation, verify the JT3150T catalog number, 150A rating, three-pole arrangement, T185 trip type, JT breaker type, J-K frame size, and physical dimensions against the existing breaker assembly and equipment requirements.